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US2576206A
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Method of making plastic bridgework
Assignee: EDWARD FRAUNDORFER
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Filing: 1949-08-22
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Granted: 1951-11-27
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Expires: 1969-08-22
Abstract
No abstract record available.
Inventors
- 👤 Frank J Barth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:53
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/225; A61C13/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US380021A
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US1037489A
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US1826271A
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US1937345A
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DE604886C
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US2357757A
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US2508546A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |